Pico CMS Access Control to web site url sub folders

Is it possible to assign different Circles to web site subfolders to limit access to individual web page sub folders ?
I am not asking about controlling editing access but controlling who can see different parts of the web site.

You can share a private website’s source folder with any Circle you want. If you don’t want the members of that Circle to edit your website, simply create a read-only share.

Let me rephrase:
I am not asking about controlling access to the source files but access to different parts of the generated web site.

You can use the access meta header to explicitly allow access of certain groups to specific pages. But apart from that: No, that’s not possible right now.